CN220852173U - Aniline VOCs tail gas treatment device - Google Patents
Aniline VOCs tail gas treatment device Download PDFInfo
- Publication number
- CN220852173U CN220852173U CN202322644549.1U CN202322644549U CN220852173U CN 220852173 U CN220852173 U CN 220852173U CN 202322644549 U CN202322644549 U CN 202322644549U CN 220852173 U CN220852173 U CN 220852173U
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- China
- Prior art keywords
- tail gas
- aniline
- liquid separator
- gas
- vocs
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- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 32
- 239000007789 gas Substances 0.000 claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 56
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000003860 storage Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 230000003020 moisturizing effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000000241 respiratory effect Effects 0.000 claims description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 12
- 238000012824 chemical production Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000001502 supplementing effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model belongs to the technical field of chemical production, and particularly relates to an aniline VOCs tail gas treatment device which comprises an aniline storage tank, wherein the top of the aniline storage tank is connected with a nitrogen sealing unit and a tail gas outlet pipeline, the tail gas outlet pipeline is connected with a tail gas collecting main pipe, the tail gas collecting main pipe is connected with a tail gas inlet of a gas-liquid separator, the top of the gas-liquid separator is provided with a tail gas outlet and a second breathing valve, the tail gas outlet is connected with an air inlet of a tail gas fan through an exhaust pipeline, an air outlet of the tail gas fan is connected with a boiler through a conveying pipeline and is used for conveying aniline VOCs tail gas into the boiler for incineration, a water outlet is arranged on the side wall of the gas-liquid separator, a water outlet pipeline is connected on the water outlet, and the other end of the water outlet pipeline is communicated with a crude water tank.
Description
Technical Field
The utility model belongs to the technical field of chemical production, and particularly relates to an aniline VOCs tail gas treatment device.
Background
In the aniline device production process, each aniline storage tank can all produce aniline VOCs gas in the production process, and the random emission of these aniline VOCs gas can cause the pollution to the environment, and along with the environmental protection requirement is becoming stricter, needs to handle aniline VOCs gas to discharge up to standard.
Disclosure of utility model
The utility model provides a device for treating tail gas of aniline VOCs aiming at the problems.
The utility model adopts the following technical scheme to achieve the aim:
The utility model provides an aniline VOCs tail gas processing apparatus, includes the aniline storage tank, the aniline storage tank is vertical sealed storage tank the top of aniline storage tank is connected with nitrogen seal unit and tail gas outlet pipeline have set gradually fire arresters, respiratory valve and singly breathe the valve on the tail gas outlet pipeline, the tail gas outlet pipeline is connected with the tail gas collection house steward, the tail gas collection house steward is connected with the tail gas entry of gas-liquid separator the upper portion of gas-liquid separator lateral wall is provided with the moisturizing mouth be connected with the moisturizing pipeline on the moisturizing mouth the top of gas-liquid separator is provided with tail gas outlet and respiratory valve No. two, the tail gas outlet passes through exhaust pipeline and is connected with the air intake of tail gas fan, the air outlet of tail gas fan passes through conveying pipeline and is connected with the boiler for send into the boiler with aniline VOCs tail gas be provided with the delivery port on the lateral wall of gas-liquid separator be connected with the outlet line on the delivery port, the other end and crude water tank intercommunication of outlet pipeline.
Further, a U-shaped liquid seal is arranged on the water outlet pipeline and is used for maintaining the stability of the liquid level in the gas-liquid separator.
Still further, a pressure sensor is provided in the gas-liquid separator for measuring the pressure inside the gas-liquid separator.
Further, a bottom liquid outlet is arranged at the lower end of the gas-liquid separator, a drain pipe is connected to the bottom liquid outlet, and the drain pipe is connected with a water outlet pipeline.
Further, a liquid level meter is also arranged on the gas-liquid separator.
Still further, still be provided with emergency release manhole at the top of aniline storage tank.
Furthermore, the opening pressure of the single breathing valve is lower than the setting pressure of the first breathing valve, and the setting pressure of the first breathing valve is lower than the opening pressure of the emergency release manhole.
Still further, nitrogen seal unit includes with nitrogen header connection nitrogen branch pipe, nitrogen branch pipe and the top intercommunication of aniline storage tank be provided with inlet valve, check valve and self-supporting governing valve on the nitrogen branch pipe, self-supporting governing valve is used for adjusting the internal pressure of aniline storage tank.
Compared with the prior art, the utility model has the following advantages:
According to the utility model, the gas-liquid separator is used for filtering steam in the aniline VOCs tail gas from the tail gas collecting main pipe, meanwhile, the gas-liquid separator can also be used for buffering and collecting the aniline VOCs tail gas, when the aniline VOCs tail gas collected in the gas-liquid separator reaches a set pressure value, the tail gas fan is started, the aniline VOCs tail gas collected in the gas-liquid separator is discharged to the boiler for incineration, when the aniline VOCs tail gas collected in the gas-liquid separator does not reach the set pressure value, the tail gas fan is not started, and the aniline VOCs tail gas in the aniline storage tank 1 is prevented from being directly extracted, so that the system is fluctuated.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
In the figure, an aniline storage tank 1, a tail gas outlet pipeline 2, a flame arrester 3, a first breathing valve 4, a single breathing valve 5, a tail gas collecting main pipe 6, a gas-liquid separator 7, a water supplementing pipeline 8, a second breathing valve 9, an exhaust pipeline 10, a tail gas fan 11, a conveying pipeline 12, a boiler 13, a water outlet pipeline 14, a rough water tank 15, a U-shaped liquid seal 16, a pressure sensor 17, a drain pipe 18, a liquid level meter 19, an emergency discharge manhole 20, a nitrogen main pipe 21, a nitrogen branch pipe 22, an inlet valve 23, a one-way valve 24 and a self-standing regulating valve 25.
Detailed Description
In order to further illustrate the technical scheme of the utility model, the utility model is further illustrated by the following examples.
As shown in figure 1, the aniline VOCs tail gas treatment device comprises an aniline storage tank 1, wherein the aniline storage tank 1 is a vertical sealed storage tank, a nitrogen sealing unit, a tail gas outlet pipeline 2 and an emergency release manhole 20 are connected to the top of the aniline storage tank 1, a flame arrester 3, a first breathing valve 4 and a single breathing valve 5 are sequentially arranged on the tail gas outlet pipeline 2, the opening pressure of the single breathing valve 5 is lower than the set pressure of the first breathing valve 4, the set pressure of the first breathing valve 4 is lower than the opening pressure of the emergency release manhole 20, the tail gas outlet pipeline 2 is connected with a tail gas collecting main pipe 6, the tail gas collecting main pipe 6 is connected with a tail gas inlet of a gas-liquid separator 7, the upper part of the side wall of the gas-liquid separator 7 is provided with a water supplementing port, the water supplementing port is connected with a water supplementing pipeline 8, a pressure sensor 17 is arranged in the gas-liquid separator 7 and used for measuring the pressure in the gas-liquid separator 7, the pressure sensor 17 is arranged in linkage with a tail gas fan 11, when the aniline VOCs tail gas collected in the gas-liquid separator 7 reaches a set pressure value, the tail gas fan 11 is started, the aniline VOCs tail gas collected in the gas-liquid separator 7 is discharged to a boiler 13 to be burnt, when the aniline VOCs tail gas collected in the gas-liquid separator 7 does not reach the set pressure value, the tail gas fan 11 is not started, the aniline VOCs tail gas in the aniline storage tank 1 is prevented from being directly extracted, and fluctuation is caused to the system; the gas-liquid separator 7 is also provided with a liquid level meter 19, the top of the gas-liquid separator 7 is provided with a tail gas outlet and a second breather valve 9, the tail gas outlet is connected with an air inlet of a tail gas fan 11 through an exhaust pipeline 10, an air outlet of the tail gas fan 11 is connected with a boiler 13 through a conveying pipeline 12 and is used for feeding VOCs tail gas into the boiler 13 for burning, the side wall of the gas-liquid separator 7 is provided with a water outlet, the water outlet is connected with a water outlet pipeline 14, the other end of the water outlet pipeline 14 is communicated with a crude water tank 15, the water outlet pipeline 14 is provided with a U-shaped liquid seal 16 and is used for maintaining the liquid level in the gas-liquid separator 7, the lower end of the gas-liquid separator 7 is provided with a bottom liquid outlet, the bottom liquid outlet is connected with a drain pipe 18, and the drain pipe 18 is connected with the water outlet pipeline 14;
The nitrogen seal unit comprises a nitrogen branch pipe 22 connected with a nitrogen main pipe 21, the nitrogen branch pipe 22 is communicated with the top of the aniline storage tank 1, an inlet valve 23, a one-way valve 24 and a self-standing regulating valve 25 are arranged on the nitrogen branch pipe 22, and the self-standing regulating valve 25 is used for regulating the internal pressure of the aniline storage tank 1.
While the principal features and advantages of the present utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. An aniline VOCs tail gas processing apparatus, its characterized in that: including aniline storage tank (1), aniline storage tank (1) is vertical sealed storage tank the top of aniline storage tank (1) is connected with nitrogen seal unit and tail gas outlet pipeline (2) set gradually on tail gas outlet pipeline (2) fire arrestor (3), respiratory valve (4) and single calling valve (5), tail gas outlet pipeline (2) are connected with tail gas collecting main pipe (6), tail gas collecting main pipe (6) are connected with the tail gas inlet of gas-liquid separator (7) the upper portion of gas-liquid separator (7) lateral wall is provided with the moisturizing mouth be connected with moisturizing pipeline (8) on the moisturizing mouth be provided with tail gas outlet and respiratory valve No. two (9) the top of gas-liquid separator (7), the tail gas outlet passes through exhaust pipeline (10) and is connected with the air intake of tail gas fan (11), the air outlet of tail gas fan (11) is connected with boiler (13) through conveying pipeline (12) for send into boiler (13) with aniline VOCs and burn the lateral wall of gas-liquid separator (7) is last to be provided with moisturizing pipeline (14) on the delivery port, the other end is connected with water outlet (14) and coarse water tank (14).
2. An aniline VOCs tail gas treatment apparatus according to claim 1, characterized in that: a U-shaped liquid seal (16) is arranged on the water outlet pipeline (14) and is used for maintaining the stability of the liquid level in the gas-liquid separator (7).
3. An aniline VOCs tail gas treatment apparatus according to claim 1, characterized in that: a pressure sensor (17) is arranged in the gas-liquid separator (7) and is used for measuring the pressure in the gas-liquid separator (7).
4. An aniline VOCs tail gas treatment apparatus according to claim 1, characterized in that: the lower end of the gas-liquid separator (7) is provided with a bottom liquid outlet, a drain pipe (18) is connected to the bottom liquid outlet, and the drain pipe (18) is connected with a water outlet pipeline (14).
5. An aniline VOCs tail gas treatment apparatus according to claim 1, characterized in that: the gas-liquid separator (7) is also provided with a liquid level meter (19).
6. An aniline VOCs tail gas treatment apparatus according to claim 1, characterized in that: an emergency release manhole (20) is also arranged at the top of the aniline storage tank (1).
7. The aniline VOCs tail gas treatment apparatus according to claim 6, wherein: the opening pressure of the single-breathing valve (5) is lower than the setting pressure of the first-breathing valve (4), and the setting pressure of the first-breathing valve (4) is lower than the opening pressure of the emergency release manhole (20).
8. An aniline VOCs tail gas treatment apparatus according to claim 1, characterized in that: the nitrogen seal unit comprises a nitrogen branch pipe (22) connected with a nitrogen main pipe (21), the nitrogen branch pipe (22) is communicated with the top of the aniline storage tank (1), an inlet valve (23), a one-way valve (24) and a self-standing regulating valve (25) are arranged on the nitrogen branch pipe (22), and the self-standing regulating valve (25) is used for regulating the internal pressure of the aniline storage tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322644549.1U CN220852173U (en) | 2023-09-27 | 2023-09-27 | Aniline VOCs tail gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322644549.1U CN220852173U (en) | 2023-09-27 | 2023-09-27 | Aniline VOCs tail gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220852173U true CN220852173U (en) | 2024-04-26 |
Family
ID=90778684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322644549.1U Active CN220852173U (en) | 2023-09-27 | 2023-09-27 | Aniline VOCs tail gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220852173U (en) |
-
2023
- 2023-09-27 CN CN202322644549.1U patent/CN220852173U/en active Active
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